ABB RET 541 - High-Speed Double-Pole Power Outputs (HSPO)

48
1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
5.1.8.1. High-speed double-pole power outputs (HSPO)
The high-speed power outputs PS1_4_HSPO1... PS1_4_HSPO5 and
PS2_4_HSPO1...PS2_4_HSPO7 can be connected as double-pole outputs where the
object to be controlled (e.g. a circuit breaker) is electrically connected between the
two relay contacts, see the figure below. The high-speed double-pole power output
is recommended to be used for tripping purposes.
When TCS is used (see Table 5.1.8-1 on page 48), the outputs are
connected as shown in Figure 5.1.11.-1 on page 66.
cbcoil_b
Fig. 5.1.8.1.-1 High-speed double-pole power outputs (HSPO)
The high-speed power outputs PS1_4_HSPO1... PS1_4_HSPO5 and
PS2_4_HSPO1...PS2_4_HSPO7 can also be connected as single-pole power
outputs where the object to be controlled (e.g. a circuit breaker) is electrically
connected in series with the two relay contacts, see the figure below.
doubpole_b
Fig. 5.1.8.1.-2 High-speed single-pole power outputs (HSPO)
!
+
-
CB
e.g.
PS1_4_HSPO1...
PS1_4_HSPO5
+
-
CB
e.g.
PS1_4_HSPO1...
PS1_4_HSPO5